I hope this helps you
Here are some questions you can teasearch
What was the cause of wwii
What countries were on what side
Why did some countries join the war
Who won the war or was there no winner
Were there any big events that occured durrinv wwii
I also suggest looking at the diary of anne frank
And look into hitler and why he did what he did
This should help you and i hope it did
Good luck
The fourth sentence is the correct answer
What do you mean exactly?
